分面浏览：发表日期 |
| 当前检索式 | ((ALL：Protective structures)) |
| 限定条件 | 无 |
| 2024 5 | 2023 7 | 2022 9 |
| 2021 12 | 2020 12 | 2019 17 |
| 2018 27 | 2017 14 | 2016 14 |
| 2015 5 | 2014 8 | 2013 13 |
| 2012 2 | 2011 26 | 2010 13 |
| 2009 12 | 2008 11 | 2007 10 |
| 2006 10 | 2005 2 | 2004 3 |
| 2003 3 | 2002 3 | 2001 3 |
| 2000 3 | 1999 6 | 1998 1 |
| 1997 1 | 1996 1 | 1994 2 |
| 1992 1 | 1991 2 | 1987 1 |
| 1981 1 |
